A fortnight in the past Mercedes driver Valtteri Bottas, McLaren’s Lando Norris and Williams duo George Russell and Nicholas Latifi all suffered comparable wanting left entrance tyre failures through the race at Losail.
The puncture triggered a retirement for Latifi, whereas the remaining three victims managed to get again to the pits and proceed their race, though Bottas ultimately retired as a result of harm his automobile sustained from the tyre blowout.
After taking the tyres again to its Italy base for investigation Pirelli has concluded that the principle trigger for the 4 tyre failures was extreme use of the excessive kerbs at Losail, which broken the tyres’ development.
“Primarily based on the findings obtained to date, the origin of the issue is principally as a result of period of time these tyres have been run on the kerbs, at excessive velocity and with appreciable lateral and vertical masses: a scenario distinctive to the Losail circuit,” Pirelli stated in a press release on Friday.
“The heavy demand brought on by operating over these kerbs, which is not attainable to measure from the information out there earlier than the race, broken the tyre development and led to a lack of stress within the inside sidewall, which consequently triggered the construction to break down after a number of seconds.”
Pirelli additionally added that it guidelines out “any manufacturing defects” to its tyres and that it has shared its findings with the groups and the FIA.
Valtteri Bottas, Mercedes W12, within the pits
Photograph by: Steve Etherington / Motorsport Images
It was the primary time F1 visited Qatar, so there was no earlier information out there to warn Pirelli and the groups about attainable points.
Pirelli was conscious that the Losail Worldwide Circuit was demanding on the entrance left tyres, however after the race Pirelli chief Mario Isola stated that it hadn’t seen something on the information from free follow and qualifying to trigger concern.
The 4 affected drivers have been on an extended stint on worn medium tyres as they tried to finish the Qatar Grand Prix on a one-stop technique.